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Finding the Fourth Proportional to 328,797.88, 453,692.43 and 199,669.20

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Solution

The fourth proportional to 328,797.88, 453,692.43 and 199,669.20 is: 275,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,797.88 : 453,692.43 = 199,669.20 : x
  2. Step 2: Convert to fraction form
    328,797.88/453,692.43 = 199,669.20/x
  3. Step 3: Cross multiply
    328,797.88x = 453,692.43 × 199,669.20
  4. Step 4: Simplify right side
    328,797.88x = 90,588,405,114.04
  5. Step 5: Solve for x
    x = 90,588,405,114.04/328,797.88
  6. Step 6: Final answer
    x = 275,513.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.